hi, i want to transmit data between two Arduino through SPI communication , i find this link http://www.gammon.com.au/forum/?id=10892 by Nick Gammon in which SPI Master Arduino transmit data to Slave Arduino and then Slave Arduino transmit the data serially to computer but in my case i want transmit data from slave to master and then master will transmit serially to computer, could any one help me ? i will be very thankful

but the problem is that i am using 8 Arduino in my project each one has specific task the Master Arduino will collect all the data from Slave Arduinos and send it to computer through Xbee , i use Softserial Arduino library but that was a bit slow which not good for my proect :~